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To learn more about the study, contact Christina Erickson at (401) 455-6366 or complete the form below and we will contact you at your convenience.

Primary Principal Investigator

Benjamin Greenberg

Additional Principal Investigator

Linda Carpenter

Study Information

Project STIM is seeking healthy individuals (without any medical or psychiatric disorders) to participate as “healthy controls” in our Project STIM study group.

Why should I join the study?
As one of 30 selected participants for the healthy control group, you will help researchers investigate and understand how the brains of patients with OCD are different than brains of healthy people. Understanding these differences is necessary for developing new treatments for people with OCD. 

What will happen if I join the study?
Initially, a phone screen will be conducted to determine potential eligibility. We will determine whether you are a candidate for a magnetic resonance imaging (MRI) scan. After completing the phone screen, potentially eligible participants will complete a series of questionnaires and assessments administered during a two to three hour clinical interview. Those eligible for the study will have two MRI scans on the Brown University campus in Providence, R.I. The interview and scans are scheduled as three separate visits over the course of a two week period.

Eligibility Criteria

The study is open to healthy adults, ages 18 to 65. You must not be pregnant or claustrophobic, and your body must be free of non-removable metal objects or metallic implants, such as pacemakers, aneurysm clips, etc.


Compensation for each completed visit: $25 for the interview and $60 for the MRI scan.

Butler Hospital

Area of Study
Obsessive Compulsive Disorder (OCD)

Recruitment Status